objdump and linux

objdump and linux

[Paul Koning]

I tried to build a Linux kernel with the latest snapshot.  Ran into
several problems, but one is peripherally related to EGCS.

I installed a recent Binutils because the instructions said that's
needed for egcs.  But that version (970731) has an objdump that no
longer understands the -k switch -- which the 2.7 version does
understand.  The linux kernel build needs that switch.

It's not a good thing for egcs to be dependent on something that
breaks the ability to build kernels...

	paul

Re: objdump and linux

[H.J. Lu]

> 
> I tried to build a Linux kernel with the latest snapshot.  Ran into
> several problems, but one is peripherally related to EGCS.
> 
> I installed a recent Binutils because the instructions said that's
> needed for egcs.  But that version (970731) has an objdump that no
> longer understands the -k switch -- which the 2.7 version does
> understand.  The linux kernel build needs that switch.
> 
> It's not a good thing for egcs to be dependent on something that
> breaks the ability to build kernels...

# rm /usr/bin/encaps

-- 
H.J. Lu (hjl@gnu.org)

Re: objdump and linux

[Richard Henderson]

> I installed a recent Binutils because the instructions said that's
> needed for egcs.  But that version (970731) has an objdump that no
> longer understands the -k switch -- which the 2.7 version does
> understand.  The linux kernel build needs that switch.

This is very FAQ by now, but you need to remove /usr/bin/encaps.


r~

Re: objdump and linux

[Jeffrey A Law]

  In message < 19971124180900.06464@dot.cygnus.com >you write:
  > > I installed a recent Binutils because the instructions said that's
  > > needed for egcs.  But that version (970731) has an objdump that no
  > > longer understands the -k switch -- which the 2.7 version does
  > > understand.  The linux kernel build needs that switch.
  > 
  > This is very FAQ by now, but you need to remove /usr/bin/encaps.
Just an FYI -- I've added this to the egcs faq.  Now if my network would
just come up I could install the updated faq!

jeff

Re: objdump and linux

[Ian Lance Taylor]

   Date: Mon, 24 Nov 1997 14:26:31 -0500
   From: Paul Koning <pkoning@xedia.com>
   Sender: owner-egcs@cygnus.com

   I installed a recent Binutils because the instructions said that's
   needed for egcs.  But that version (970731) has an objdump that no
   longer understands the -k switch -- which the 2.7 version does
   understand.  The linux kernel build needs that switch.

   It's not a good thing for egcs to be dependent on something that
   breaks the ability to build kernels...

The Linux kernel build procedure works in one of two ways.  If you
have encaps in your PATH, it uses a hacked version of objdump that was
never in the GNU binutils.  If you do not have encaps in your PATH,
then it uses a procedure that works correctly with the GNU binutils.

So the fix is to remove your copy of encaps.

Ian

Re: objdump and linux

[meissner]

| I tried to build a Linux kernel with the latest snapshot.  Ran into
| several problems, but one is peripherally related to EGCS.
| 
| I installed a recent Binutils because the instructions said that's
| needed for egcs.  But that version (970731) has an objdump that no
| longer understands the -k switch -- which the 2.7 version does
| understand.  The linux kernel build needs that switch.

First of all, the -k option was never part of the offical binutils package, but
instead it was a Linux specific hack.

No it doesn't, at least newer kernels.  What you have to do is delete the
encaps program (I'm not kidding -- that's how the kernel build determines
whether the new binutils has been instralled, or the musty old 2.6 version of
binutils with Linux specific hacks was installed).

| It's not a good thing for egcs to be dependent on something that
| breaks the ability to build kernels...
| 
| 	paul
|